Belt-carrier.



No. 704,723. Patented July 15, 1902.

4. WEICHHABT, BE LT CARRIER.

(Application flXedApr. 4, 19m.)

("0 Nuclei.)

v TQM wffgg 1. 7 O g 4 UNITED STATES PATENT OFFICE.

I JOHN WEICHHART, OF SAN FRANCISCO, CALIFORNIA.

BELT-CARRIER.

SPECIFICATION forming part of Letters Patent No. 704,723, dated il'uly-15, 1902,

Application filed April 4, 1901.

To all whom it may concern; I I

Beit known that Llonu WEIOHHART, a citizen of the United States,residing in the city and county of San Francisco and State of Oalifornia, have invented a new and useful Improvement in Belt-Carriers forDriving-Pulleys of Power-Shafts, of which the following is aspecification.

The present invention has for its object mainly to effectually obviateand decrease the objections and difficulties incident to thetransmission of powerby belts and pulleys, especially in thosesituations and applications where the power is required at irregularintervals, as in a shop or factory where certain machines or appliancesare not in daily orv frequent use, while the power-shaft is alwaysrunning during working hours.

- To such end and object the invention con-- sists, essentially, inmounting or hanginga loose pulley or belt-carrier alongside the main ordriving pulley on the power-shaft to take the belt from that pulley whenand as often as it is stripped from the fast to the loose pulley at themachine or tool being driven from the power-shaft and in providing meansof novel character for. setting, adjusting, and supporting suchbelt-carrier in operative position with relation to the driving-pulley.

The nature of the said invention and the manner in which I proceed toconstruct, apply, and carry out the same are explained at length in thefollowing description, reference being had to the accompanying drawings,forming part thereof.

Figure 1 of the drawings is a front elevation of a section or portion ofan overhead power-shaft and a driving-pulley fast thereon, together withmy improved belt-carrier and its adjustable hanger supporting thecarrier in working relation to the pulley, the fast and loose pulleys ofthe machine or tool to be driven being shown at a distance beneath theshaft and its pulley. Fig. 2 is a side elevation, on an enlarged scale,of the adjustable hanger with the front plate of the same removed. Fig.3 is a front elevation on an enlarged scale.

A represents an ordinary overhead powershaft, carried by hangers B B,and D a driving-pulley fast thereon, from which power is transmitted bya belt (indicated by dotted fierial No. 54,241. (No model.)

lines) to fast and loose pulleys E F on a shaft I, which-may be theprincipal shaft of a machine or a tool to be driven.

' G is a hanger composed of a shank 2 and a detachable box 3, having asleeve or relatively long hub at extending from one side, and H is abelt-carrier loosely mounted on and supported by the sleeve. The shank 2is provided with a top flange 5, having holes for screws 6 by which tofasten it to a fixed support, such as the ceiling of the shop. On thefoot or lower end of this member 2 is fixed the box or detachable member3 by setting the lower end in a cavity 8 in the top of the boxandpouring around Babbitt metal orother similar material or compound in amolten state and allowing it to set and become solid. The cavity 8 beingopen at the top and being somewhat larger in its internal dimensionsthan the lower end of the member 2 a loose fit and sufficient space areafiorded for vertical and lateral adjustment of the two parts or membersfor setting and adjusting the hanger to the shaft. The lower member 3 isformed in two parts divided horizontally and longitudinally through themiddle of the sleeve, and the two parts are fastened together by boltsand nuts 10, so as to allow the sleeve to be separated and. placed onthe shaft without disturbing the adjustment of the shaft in its hangers,the purpose of this construction being to allow the hanger to be setalongside of a driving-pulley at any point in the length of a shaftWithout removing the shaft from its bearings, and, furthermore, tofacilitate and reduce the work of setting the sleeve, so as to clear theshaft and set true and parallel with it. After the hanger is thusadjusted and fixed in position the belt-carrier H is placed on itssupport, which is the sleeve, as before described, and in theconstruction of this carrier provision is also made for placing it overthe shaft and seating it on the sleeve while those parts-are inposition.

In cases where a driving-belt is tobe frequently shifted from the fastto the loose pulley of a machine or tool during work done by the machinethe pulley of theshaft from which motive power is taken should have awide rim, so as to carry the belt while it is running on either pulleyat the machine, as

I have illustrated in Fig. 1 of the drawings.

In the operation of setting the hangers in position the member 2 isfirst fastened to the overhead timbers or supports one over the shaft asnearly as possible in vertical or upright position, after which thesections of the other member carrying the box or socket are separatedand brought around the shaft and then bolted together. The foot of themember 2 then being inserted in the socket on the top of the lowermember that part is brought into position to set the sleeve clear of theshaft and as nearly as possible concentric with the shaft, so as to makethe axis of rotation of the carrier H coincident with that of thedriving-pulley. Finally, the two parts of the hanger are securedtogether by running Babbitt metal into the box around the foot of theupper member and holding the parts in position until the metal hardens.Grooves or recesses made in the foot of the upper member will securelyunite the parts.

The hub of the carrier H is fitted on the sleeve to turn smoothly; butit is not necessary to finish the parts with a view to overcome frictionnor to provide for lubricating the surfaces that work in contact,because the function of the carrier is to support the belt during thetime it is unshipped from the power-pulley, and consequently is at rest,as Well as to hold the belt in position alongside of the power-pulley,to which it can easily be shifted when the power is required.

Having thus fully described my invention,

what I claim as new therein, and desire to secure by Letters Patent, is-

1. A belt-carrier for a driving-pulley comprising a hanger composed of afixed member having a top flange, a separable member having a box withan open top end to receive the end of the fixed member, in which saidmember is secured after adjustment by pouring molten metal into the boxaround the end of the fixed member, a two-part sleeve on the separablemember divided longitudinally, means for securing the movable part ofthe sleeve to the box, and a belt-carrying pulley loosely mounted on thesleeve.

2. In a pulley-hanger the combination, of a fixed member having a topflange and provided with recesses in the surface at the lower end, aseparable member having an open-end box, the opening in which is adaptedto permit lateral as well as vertical adjustment of the end of the fixedmember before it is secured thereon, said parts being united afteradjustment by pouring molten metal into the space around the lower endof the fixed member and allowing it to set.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. i

JOHN WEICHHART.

W'itnesses:

EDWARD E. OSBORN, M. REGNER.

